Flame Retardant Method of Flame Retardant Optical Cable

What are the flame retardant methods of flame retardant optical cable

First: condensed phase flame retardant

The solid phase of some high-efficiency flame-retardant optical cables can effectively prevent the thermal decomposition of polymers, and the release of combustible gases from polymers to achieve flame-retardant effects. Moreover, flame retardants for flame retardant optical cables tend to form molten substances or foam carbon layers to cover the surface of polymers at high temperatures, so as to achieve the purpose of flame retardancy by isolating oxygen and heat.

Second: interrupt heat exchange

A flame-retardant optical cable with a favorable price can take away the heat generated by the polymer due to combustion, without feeding back to the polymer so that it can be quickly decomposed, so as to achieve the flame-retardant effect.

The flame retardant of flame retardant optical cable will produce endothermic effect at high temperature, which can absorb a large amount of heat released by combustion and reduce the temperature of the surface of combustibles, so as to effectively suppress flammable gases and prevent flame continuation.

The flame retardant in the flame-retardant optical cable can release the non-combustible gas due to combustion, thereby diluting the combustible gas decomposed from the combustible material, so that the concentration of the combustible gas is reduced below the ignition point, and at the same time the non-combustible gas also reduces the combustion zone. Oxygen concentration can also prevent combustion.

Third: charring

The flame retardant optical cable polymer can generate charcoal during thermal degradation to reduce the generation of volatiles, and the carbon layer material sticks to the surface of the polymer so that it cannot be in contact with the outside world to prevent its thermal degradation, which can effectively solve the burning of optical cables .

No matter which flame-retardant method of flame-retardant optical cable, it is characterized by delaying the spread of flame along the cable so that the fire will not expand and because of its low cost, it is the most popular among fire-resistant optical cables. And because it can control the spread of the flame within a certain range when it is burned, it can prevent the serious consequences caused by the continuation of the flame, thereby improving the fire protection level of the cable line.